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JPS60135485A |
PURPOSE: To dewax efficiently a hydrocarbon fraction and to lower pour point, by bringing the hydrocarbon fraction in the presence of hydrogen into contact with a catalyst mainly composed of a mordenite type zeolite contg. a platinum met...
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JPS60135486A |
PURPOSE: To dewax efficiently a hydrocarbon fraction and to lower pour point, by bringing the hydrocarbon fraction in the presence of hydrogen into contact with a catalyst composed of a mixture of a mordenite type zeolite and a specified...
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JPS60129105A |
Regenerated Cellulose membranes used for the separation of organic liquids, for example, ketone dewaxing solvents from dewaxed oil or NMP extraction solvents from extract, have their solute rejection capability enhanced by chemical modif...
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JPS6025412B2 |
This invention relates to hydrocarbon polymers having lower penetration or greater hardness (H), greater viscosities (V), higher molecular weights (MW), but having melting points (MP) and congealing points (CP) which are essentially no h...
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JPS6017475B2 |
Mixed alkyl esters made by reacting a mixture of two or more of certain monohydric alcohols with interpolymers derived from (i) alpha , beta -unsaturated dicarboxylic acids or derivatives thereof and (ii) vinyl aromatic monomers having u...
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JPS6012355B2 |
Condensation products made by reacting an alpha-hydroxyalkyl hydroxy-aromatic compound also having at least one non-fused hydrocarbyl substituent with at least one olefinic nitrile, carboxylic acid or carboxylic acid derivative are usefu...
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JPS6055080A |
A highly dispersed platinum ZSM-5 catalyst used in hydrodewaxing lube stock yields a product with improved overnight cloud performance and lighter ASTM color.
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JPS6035091A |
Dewaxing solvents, particularly ketone solvents and ketone/toluene solvents, are separated from a mixture of dewaxing solvents and dewaxed oil in a lube oil dewaxing process by use of an asymmetric permselective polyimide membrane. Said ...
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JPS604866B2 |
An improved processing technique is provided for gas oil pour point reduction and dewaxing. The improved technique comprises contacting an appropriate gas oil feedstock with a catalyst comprising a crystalline aluminosilicate zeolite cha...
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JPS604592A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS5951592B2 |
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JPS5951591B2 |
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JPS5950199B2 |
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JPS5950198B2 |
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JPS5949958B2 |
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JPS59187089A |
PURPOSE: To prepare a base oil for lubricant, having high stability, in high yield, without remarkably lowering the viscosity index, by contacting a lubrication oil fraction with a catalyst composed mainly of a specific zeolite in the pr...
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JPS59132942A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS59113092A |
PURPOSE: To obtain a dewaxed oil, easily, economically and efficiently, by contacting a hydrocarbon fraction with a catalyst containing a specific crystalline aluminosilicate in the presence of hydrogen. CONSTITUTION: A catalyst containi...
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JPS5923855B2 |
1445593 Hydrocarbon conversion catalyst SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 24 Aug 1973 [25 Aug 1972] 40167/73 Addition to 1337752 Heading BIE [Also in Divisions Cl and C5] Zeolite prepared according to the process of the main ...
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JPS5986614A |
Novel copolymers which comprise, in a random distribution, from 2 to 50% by weight of radicals of the formula I from 38 to 98% by weight of radicals of the formula II and from 0 to 60% by weight of radicals derived from other copolymeris...
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JPS5981384A |
This invention relates to processes for solvent dewaxing waxy hydrocarbon oil distillates employing a dewaxing aid which dewaxing aid is a mixture of (a) poly(meth-)acrylate polymers and (b) polydialkylfumarate/vinyl acetate copolymers. ...
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JPS5980334A |
A high quality lube base stock oil of low pour point and excellent stability is produced from a waxy crude oil fraction in a single-stage hydrodewaxing process by using an improved ZSM-5 type catalyst having nickel-molybdenum, cobalt-mol...
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JPS5978290A |
An improved method for separating a slack wax into a wax fraction and a lube oil fraction is disclosed. The method comprises passing the slack wax into a first mixing zone and subsequently into a second mixing zone. Solvent selectively m...
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JPS5917154B2 |
An improved process for dewaxing waxy oils which have been produced by hydrotrcating to produce a base oil suitable for the production of high-quality lubricating oil. The dewaxing process is carried out utilizing a solvent and a dewaxin...
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JPS5964694A |
It has been discovered that the pour point and wax content of waxy hydrocarbon oils, either natural or derived from synthetic sources such as tar sands, shale oil, etc., preferably natural waxy petroleum oils, most preferably waxy lube, ...
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JPS5911635B2 |
Improved catalytic dewaxing and desulfurization of high pour point, high sulfur gas oils to lower their pour point to about 10 DEG F or lower and their sulfur content by contacting a high pour point gas oil first with a ZSM-5 type zeolit...
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JPS592101Y2 |
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JPS591432B2 |
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JPS58146445A |
A single stage catalyst system and process for using same in a single stage operation for hydrodewaxing and hydrotreating petroleum residua is disclosed. The catalyst comprises a ZSM-5 type zeolite in an alumina binder having specified m...
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JPS5823434B2 |
A method for the operation of a hydrodewaxing unit wherein a petroleum distillate is separated into two streams, one having a pour point of above about 30 DEG F, and the other having a pour point of less than about 30 DEG F., the 30 DEG ...
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JPS5821674B2 |
1476428 White oils SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 1 July 1974 [3 July 1973] 31602/73 Heading C5E White oils are produced from wax by a twostage hydrogenation process in which the first stage is carried out using a sulphidi...
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JPS5867351A |
The aging of a dewaxing catalyst, such as a presteamed, sodium-exchanged ZSM-5 type zeolite, is improved when the dewaxing is being conducted in the presence or absence of added gas if water or a water precursor is admixed with the feeds...
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JPS5819720B2 |
1476426 Medicinal and technical white oils SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 1 July 1974 [3 July 1973] 31603/73 Heading C5E White oils are produced from wax containing less than 30% by weight of aromatics by hydrogen treatmen...
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JPS5747232B2 |
A three-stage, wholly catalytic process for the production of lubricating oil comprises the steps of hydrogenation to improve viscosity index and reduce sulphur content, catalytic dewaxing to reduce pour point and hydrogenation over a ha...
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JPS5743118B2 |
Lube oils which may be used as direct multigrade lube oils are obtained from paraffins, particularly from hydrocracking paraffins, by hydrogenation in the presence of both a group VIII noble metal carried on halogenated alumina and ammon...
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JPS5743119B2 |
1469345 Selective cracking MOBIL OIL CORP 10 June 1974 [6 July 1973] 25584/74 Heading C5E Straight and slightly branched chain hydrocarbons are selectively cracked from mixtures using a catalyst comprising a crystalline aluminosilicate z...
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JPS57145178A |
A waxy fuel oil that contains a catalytically deleterious contaminant is treated with a crystalline zeolite under sorption conditions followed by catalytic dewaxing with a crystalline zeolite exemplified by ZSM-5 to produce dewaxed fuel ...
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JPS57139182A |
A hydrocarbon feed for use in a catalytic conversion process that utilizes a zeolite catalyst, and that contains a catalytically deleterious impurity, is refined by contact with a zeolitic sorbent. The invention is applicable to dewaxing...
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JPS5732045B2 |
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JPS5724832B2 |
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JPS5724818B2 |
A process for preparing an oxygen-containing wax obtained by reacting a mixture of saturated and unsaturated hydrocarbon waxes with an unsaturated polycarboxylic acid thereby to prepare the oxygen-containing wax. In one embodiment, this ...
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JPS5714323B2 |
1409834 Separating hydrocarbons DEUTSCHE TEXACO AG 4 April 1973 [27 April 1972] 16048/73 Heading C5E n-Paraffins are produced from mineral oil distillates by reacting the oil, diluted with an organic solvent, with urea to form a pulverul...
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JPS5747714A |
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JPS5711593B2 |
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JPS5711592B2 |
An incremental dilution dewaxing process for lubricating oil stocks in which the base stock, at a temperature above its cloud point, is cooled with vigorous agitation to a temperature below its cloud point and then further cooled with mi...
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JPS5711591B2 |
Particles of solid wax are separated from a slurry comprising said wax particlesand a hydrocarbon oil by filtering the slurry through a cloth filter medium. It has been found that using, as the filter medium, a needled-felt cloth fabrica...
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JPS575279B2 |
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JPS574679B2 |
1469309 Hydrogenation of aromatic hydrocarbons UOP Inc 29 July 1974 [30 July 1973] 33370/74 Heading C5E Substantially aromatic-free paraffins are obtained by treating a paraffinic feed boiling in the range 150-287 C. with hydrogen in t...
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JPS573716B2 |
1440230 Lubricating oils SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 2 Aug 1973 [4 Aug 1972] 36732/73 Heading C5E A feed composed of a vacuum distillate and/or deasphalted residual mineral oil is catalytically hydrocracked in the prese...
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JPS573718B2 |
A dewaxing process is described wherein a residual waxy petroleum oil stock characterized by having a viscosity greater than about 75 SUS at 210 DEG F. and containing less than about 10 percent of material boiling below about 950 DEG F.,...
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